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Problem- A quantity of ice at 0.0 degrees C was added to 33.6 of water at 21.0 degree C to give water at 0.0 degrees C. How much ice was added? The heat of fusion of water is 6.01 kJ/mol and the specific heat is 4.18 J/(g * degrees C)
I don't know how to reach these answers thus please show the steps, thank you!
Demonstrate how you could prepare each of the following compounds from Propene and any necessary organic or inorganic reagents.
Eugenol can also be isolated from cloves using extraction with CO2. discuss the advantages and disadvantages of distillation versus CO2 extraction.
With initial concenration of A and B of 0.04 mol/L, the rate of formation of AB is measured at 0.005 mmol/(Ls). When the initial concentration of A is raised to 0.07 mol/L, with that of B the same as before, the rate of formation of AB increases t..
Consider the five individual ions two cations as well as three anions that come together to form the compound ferric oxide. How many total electrons does each of the cations have
Problem- Tarnish on copper is the compound CuO. A tarnished copper plate is placed in an aluminum pan of boiling water. When enough salt is added so that the solution conducts electricity, the tarnish disappears. Imagine that the two halves of thi..
Given the following two half-reactions, write the overall balanced reaction in the direction in which it is spontaneous and calculate the standard cell potential.
Explain how many half-lives must elapse before the activity of a radioactive isotope reduce to 1% of its initial value? Explain how long is this time for 87Rb, which has a decay constant of 0.1420 x10-10/yr?
A patient needs to take 625 of ibuprofen twice daily. The pills in the bottle are each 250. . How many pills does the patient need to take each time she wants the 625 dosage? Assume that these pills are scored and can be cut in half if necessary.
Problem- 10 ml of 6M HCl is used during this lab. How much Na2CO3 would be required to neutralize this much acid
a 1.0 liter container initially holds 0.0150 mol H2 and 0.020 mole I2 at 721K . What are the concentrations of , H2,I2 and HI after system has achieved a state og equilibrium? The value Keq is 50.5 for the reaction H2+I2↔ 2HI
Sulfur dioxide is a compound produced when sulfur burns in air. It has a melting point of -72.7 C and a boiling point of -10 C. In what state does sulfur dioxide exist at room temperature (25 C)
Consider the following reaction: CO(g)+2H2(g)-->CH3OH(g) Kp=2.26*10^4 at 25 degrees C. Calculate deltaGrxn under each of the following conditions- At STP, at Equilibrium, and when PCH3OH=1.1 atm, and pCO=pH2=1.3*10^-2 atm.
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